JP3328993B2 - Hydrogen generation method - Google Patents
Hydrogen generation methodInfo
- Publication number
- JP3328993B2 JP3328993B2 JP10839493A JP10839493A JP3328993B2 JP 3328993 B2 JP3328993 B2 JP 3328993B2 JP 10839493 A JP10839493 A JP 10839493A JP 10839493 A JP10839493 A JP 10839493A JP 3328993 B2 JP3328993 B2 JP 3328993B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- hydrogen
- fuel
- electrodes
- reaction
- Prior art date
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Fuel Cell (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電気化学装置を用いた
水素発生方法に関する。The present invention relates to a hydrogen generating method using the electric chemical apparatus.
【０００２】[0002]
【従来の技術】従来より、炭化水素燃料から水素を発生
させるための装置として、リフォーマがある。2. Description of the Related Art Conventionally, there is a reformer as an apparatus for generating hydrogen from hydrocarbon fuel.
【０００３】リフォーマにおいて行なわれる水素発生方
法には、原料ガスに水蒸気を加えて原料炭化水素を水
素、一酸化炭素および二酸化炭素に変換させる水蒸気改
質法と、原料炭化水素の一部を燃焼させて水素、一酸化
炭素および二酸化炭素を得る部分酸化法（部分燃焼法）
とがある。[0003] Hydrogen generation methods performed in the reformer include a steam reforming method in which steam is added to a raw material gas to convert the raw material hydrocarbon into hydrogen, carbon monoxide and carbon dioxide, and a method in which a part of the raw material hydrocarbon is burned. Oxidation method to obtain hydrogen, carbon monoxide and carbon dioxide (partial combustion method)
There is.
【０００４】炭化水素を一般にＣn Ｈm で表わせば、水
蒸気改質法において起こる反応を［化１］、部分酸化法
において起こる反応を［化２］にそれぞれ示すことがで
きる。When hydrocarbons are generally represented by C n H m , the reaction occurring in the steam reforming method can be represented by [Chemical Formula 1], and the reaction occurring in the partial oxidation method can be represented by [Chemical Formula 2].
【０００５】[0005]
【化１】 Embedded image
【０００６】[0006]
【化２】 Embedded image
【０００７】これらの反応において、一酸化炭素の一部
は次に示す反応を起こし、これらの反応は平衡を保って
進行する。In these reactions, some of the carbon monoxide undergoes the following reactions, and these reactions proceed in equilibrium.
【０００８】[0008]
【化３】 Embedded image
【０００９】[0009]
【化４】 Embedded image
【００１０】［化１］は吸熱反応で、他の反応は発熱反
応である。したがって、［化１］の反応では外部から加
熱する必要があり、通常、ニッケル系の触媒を充填した
耐熱金属製の反応管で、温度８００℃〜９００℃におい
て反応が行なわれる。一方、このような温度では、［化
３］および［化４］の反応はあまり右側に進行せず、た
とえば８５０℃での反応の場合、二酸化炭素の濃度は１
３〜１４％、メタンの濃度は３〜４％である。## STR1 ## is an endothermic reaction and the other reactions are exothermic. Therefore, in the reaction of [Chemical Formula 1], it is necessary to heat from the outside, and the reaction is usually performed at a temperature of 800 ° C. to 900 ° C. in a reaction tube made of a heat-resistant metal filled with a nickel-based catalyst. On the other hand, at such a temperature, the reactions of [Chemical Formula 3] and [Chemical Formula 4] do not proceed so much to the right side.
3-14%, the concentration of methane is 3-4%.
【００１１】また、炭化水素の代わりにアルコールの一
種であるメタノールを用いた場合は、水と次式のような
反応で改質が進行する。When methanol, which is a kind of alcohol, is used in place of hydrocarbon, reforming proceeds by reaction with water as shown in the following formula.
【００１２】[0012]
【化５】 Embedded image
【００１３】この反応は、０〜２０ｋｇ／ｃｍ2 の圧
力、２００〜６００℃の温度に設定することが好ましい
とされている。It is said that this reaction is preferably set at a pressure of 0 to 20 kg / cm 2 and a temperature of 200 to 600 ° C.
【００１４】[0014]
【発明が解決しようとする課題】上述した反応を行なっ
た後、リフォーマを出るガス中には、かなりの濃度の一
酸化炭素が含まれている。After performing the above reaction, the gas leaving the reformer contains a significant concentration of carbon monoxide.
【００１５】このため、ガス漏れが万一発生した場合、
一酸化炭素中毒の危険が伴う。また、リフォーマを出る
ガスを触媒反応に用いる際、このガス中に含まれる一酸
化炭素が触媒を被毒し、正常な反応を妨げる場合があ
る。Therefore, if a gas leak occurs,
With the danger of carbon monoxide poisoning. Further, when a gas exiting the reformer is used for a catalytic reaction, carbon monoxide contained in the gas may poison the catalyst and prevent normal reaction.
【００１６】そこで、一酸化炭素の残存量を低くするた
め、［化３］の反応を右に押し進めるべく、一酸化炭素
転化器という装置が用いられる。一酸化炭素転化器で
は、発熱反応である［化３］の反応を押し進めるため
に、まず３５０℃〜３７０℃程度に反応温度を設定し、
反応速度を高めるため鉄−クロム系などの触媒を用い
て、いわゆる高温転化（Ｈｏｔ Ｓｈｉｆｔ）を行な
い、さらに、銅−亜鉛系の触媒を用いて、２００〜２３
０℃程度で低温転化（Ｃｏｌｄ Ｓｈｉｆｔ）を行なわ
せる。これにより一酸化炭素濃度を減少させることがで
きる。In order to reduce the residual amount of carbon monoxide, a device called a carbon monoxide converter is used to push the reaction of [Chemical Formula 3] to the right. In the carbon monoxide converter, first, the reaction temperature is set to about 350 ° C. to 370 ° C. in order to promote the reaction of [formula 3] which is an exothermic reaction.
In order to increase the reaction rate, so-called high temperature conversion (Hot Shift) is carried out using an iron-chromium-based catalyst or the like, and further, 200 to 23 using a copper-zinc-based catalyst.
A low-temperature conversion (Cold Shift) is performed at about 0 ° C. Thereby, the concentration of carbon monoxide can be reduced.
【００１７】燃料がアルコールの場合は、この改質反応
の後、改質ガスのＣＯをさらに低減するため、ＣＯシフ
ト触媒が用いられる。ＣＯシフト処理では、ＣＯがＨ2
Ｏとの反応により１％程度の濃度にまで低減される。ま
た、さらにＣＯ濃度を引き下げるためには、第２のＣＯ
低減装置によって、改質ガスをさらに空気と反応させる
ことにより、１００ｐｐｍまで低減が可能である。しか
し、このような方法では、装置が複雑になり、高温を要
するなどという問題がある。When the fuel is alcohol, a CO shift catalyst is used after the reforming reaction to further reduce the CO of the reformed gas. In CO shift processing, CO is H 2
By the reaction with O, the concentration is reduced to about 1%. In order to further reduce the CO concentration, the second CO
The reduction device can further reduce the reformed gas to 100 ppm by reacting it with air. However, such a method has a problem that the apparatus becomes complicated and a high temperature is required.
【００１８】本発明の目的は、上記のような複雑なフロ
ーシステムを用いず、燃料から、一酸化炭素をほとんど
発生させずに水素ガスを生成できる方法を提供すること
にある。An object of the present invention is to provide a method capable of producing hydrogen gas from a fuel without using a complicated flow system as described above and generating almost no carbon monoxide.
【００１９】本発明のさらなる目的は、メタノールおよ
び水を含む燃料から、電気化学的に一酸化炭素をほとん
ど発生させずに、水素を生成できる方法を提供すること
にある。It is a further object of the present invention to provide a method for producing hydrogen from a fuel containing methanol and water with little electrochemical generation of carbon monoxide.
【００２０】[0020]
【課題を解決するための手段】本発明に使用する電気化
学装置は、対向する１対の表面を有する陽イオン交換膜
と、陽イオン交換膜の対向する１対の表面にそれぞれ設
けられ、触媒を含む材料からなる１対の電極と、１対の
電極の一方に燃料を供給するための燃料供給手段とを備
える。本発明に使用する電気化学装置では、燃料を供給
される一方の電極において、燃料から陽イオンを発生さ
せ、発生された陽イオンを陽イオン交換膜を介して１対
の電極の他方上で電子供給により分子に変換させる。The electrochemical device used in the present invention comprises a cation exchange membrane having a pair of opposed surfaces, and a catalyst provided on a pair of opposed surfaces of the cation exchange membrane, respectively. And a fuel supply means for supplying fuel to one of the pair of electrodes. In the electrochemical device used in the present invention , cations are generated from the fuel at one electrode to which the fuel is supplied, and the generated cations are transferred to the electron on the other of the pair of electrodes via a cation exchange membrane. It is converted into a molecule by feeding.
【００２１】本発明において、陽イオン交換膜は、陽イ
オンを選択的に透過させるものであれば特に限定される
ものではない。陽イオン交換膜として、固体高分子電解
質膜、リン酸を含むマトリックスからなる膜、硫酸を含
むマトリックスからなる膜、固体電解質よりなる膜など
を挙げることができる。また、陽イオン交換基として、
スルホン酸、ホスホン酸、硫酸エステル、リン酸エステ
ルなどを有するイオン交換膜を用いることができる。In the present invention, the cation exchange membrane is not particularly limited as long as it allows cations to selectively permeate. Examples of the cation exchange membrane include a solid polymer electrolyte membrane, a membrane composed of a matrix containing phosphoric acid, a membrane composed of a matrix containing sulfuric acid, and a membrane composed of a solid electrolyte. Also, as a cation exchange group,
An ion exchange membrane having sulfonic acid, phosphonic acid, sulfate, phosphate, or the like can be used.
【００２２】本発明において、電極に含有される触媒に
は、白金、パラジウム、ロジウム、ルテニウム、金、イ
リジウムおよびこれらの元素の少なくともいずれかを含
む合金等を用いることができる。In the present invention, platinum, palladium, rhodium, ruthenium, gold, iridium and alloys containing at least one of these elements can be used as the catalyst contained in the electrode.
【００２３】１対の電極は、白金、パラジウム、ロジウ
ム、ルテニウム、金、イリジウムおよびこれらの元素の
少なくともいずれかを含む合金等の触媒材料自体から形
成してもよいし、導電性のカーボン電極等に触媒材料を
担持させたもの等から形成してもよい。The pair of electrodes may be formed from a catalyst material itself such as platinum, palladium, rhodium, ruthenium, gold, iridium and an alloy containing at least one of these elements, or a conductive carbon electrode or the like. And a catalyst material supported on the substrate.
【００２４】本発明に従う電極は、たとえば、陽イオン
交換膜の膜表面の多孔構造内に、電極材料を析出させる
ことによって形成することができる。その他、本発明に
従う電極は、導電性電極基材に触媒材料を電解または無
電解メッキすること等により形成することができる。The electrode according to the present invention can be formed, for example, by depositing an electrode material in a porous structure on the surface of a cation exchange membrane. In addition, the electrode according to the present invention can be formed by electrolytic or electroless plating of a catalyst material on a conductive electrode substrate.
【００２５】本発明に使用する装置において、燃料供給
手段は、たとえば、電極の一方に燃料を接触させるた
め、燃料を収容する容器もしくは槽、該容器もしくは槽
に燃料を所定の圧力で送り込むためのポンプ等を備える
ことができるが、これらに限定されず、電極に燃料を供
給する機構であれば、いかなるものを用いることもでき
る。In the apparatus used in the present invention, the fuel supply means includes, for example, a container or a tank containing the fuel and a fuel for feeding the fuel into the container or the tank at a predetermined pressure in order to bring the fuel into contact with one of the electrodes. Although a pump or the like can be provided, the invention is not limited thereto, and any mechanism that supplies fuel to the electrode can be used.
【００２６】本発明に使用する装置において、燃料には
少なくともメタノールおよび水を含むものを用い、一方
の電極から水素イオン、他方の電極から水素分子を発生
させることができる。このような装置において、電極に
含まれる触媒として、白金、パラジウム、ロジウム、ル
テニウム、金、イリジウムおよびこれらの元素の少なく
ともいずれかを含む合金等が好ましく用いられる。In the apparatus used in the present invention, a fuel containing at least methanol and water is used as a fuel, and hydrogen ions can be generated from one electrode and hydrogen molecules can be generated from the other electrode. In such an apparatus, platinum, palladium, rhodium, ruthenium, gold, iridium, an alloy containing at least one of these elements, or the like is preferably used as a catalyst contained in the electrode.
【００２７】また、上述した水素を発生させる装置にお
いて、他方の電極側に、水素を選択的に透過させること
ができる材料からなる膜を設けることができる。このよ
うな膜は、水素透過膜として名づけることができ、水素
分子の透過率が、他の物質の透過率に比べて高いもので
ある。このような膜として、たとえば、ポリイミド、ポ
リスチレン等の高分子からなる膜、Ｐｄ合金からなる
膜、Ｔｉ系、Ｍｍ系（Ｍｍはミッシュメタルを示す）、
Ｌａ系、Ｍｇ系等の水素吸蔵合金などからなる膜を用い
ることができる。In the above-described apparatus for generating hydrogen, a film made of a material capable of selectively transmitting hydrogen can be provided on the other electrode side. Such a film can be named as a hydrogen permeable film, and has a higher transmittance of hydrogen molecules than that of another substance. Examples of such a film include a film made of a polymer such as polyimide and polystyrene, a film made of a Pd alloy, a Ti-based material, an Mm-based material (Mm represents a misch metal),
A film made of a La-based, Mg-based or the like hydrogen storage alloy or the like can be used.
【００２８】また、上述した装置により水素を発生する
方法を提供することができ、この方法は、陽イオン交換
膜の対向する両面に１対の電極を設け、一方に設けられ
た触媒を含む電極に、メタノールと水を少なくとも含む
燃料を接触させ、１対の電極に電圧を印加して電極から
電子を取り出すことによって電極上でメタノールおよび
水から水素イオンを発生させる反応を進行させ、発生さ
せた水素イオンを陽イオン交換膜の対向する１対の面の
他方に設けられた電極において、電子の供給により水素
分子に変換することを特徴とする。Further, a method for generating hydrogen by the above-described apparatus can be provided. In this method, a pair of electrodes is provided on both opposite surfaces of a cation exchange membrane, and an electrode including a catalyst provided on one of the electrodes is provided. Then, a fuel containing at least methanol and water is brought into contact, and a voltage is applied to a pair of electrodes to extract electrons from the electrodes, thereby causing a reaction to generate hydrogen ions from the methanol and water on the electrodes, and
The method is characterized in that the supplied hydrogen ions are converted into hydrogen molecules by supplying electrons at an electrode provided on the other of the pair of opposing surfaces of the cation exchange membrane.
【００２９】[0029]
【作用】本発明の作用機構を図を用いて以下に説明す
る。The operation mechanism of the present invention will be described below with reference to the drawings.
【００３０】図１は、本発明に従う電気化学装置の一例
を示す模式図である。電気化学装置１００において、た
とえば、固体高分子電解質膜からなる陽イオン交換膜１
０１の両側には、白金触媒をそれぞれ担持させた燃料用
電極１０２および対向電極１０３が設けられる。FIG. 1 is a schematic diagram showing an example of the electrochemical device according to the present invention. In the electrochemical device 100, for example, the cation exchange membrane 1 made of a solid polymer electrolyte membrane
On both sides of the fuel cell 01, a fuel electrode 102 and a counter electrode 103 each carrying a platinum catalyst are provided.
【００３１】このような陽イオン交換膜と１対の電極か
らなる接合体は、たとえば、セパレータ１０６と１０７
の間に挟むことができる。燃料用電極１０２側のセパレ
ータには、燃料供給用兼ＣＯ2 排出用溝１０８ａ〜ｅが
さらに形成され、対向電極１０３側のセパレータ１０７
には、水素排出用溝１０９ａ〜ｅがさらに形成されてい
る。The joined body composed of such a cation exchange membrane and a pair of electrodes is, for example, a separator 106 and 107
Can be sandwiched between. In the separator on the side of the fuel electrode 102, grooves 108 a to 108 e for fuel supply and CO 2 discharge are further formed, and the separator 107 on the side of the counter electrode 103 is formed.
Are further formed with hydrogen discharge grooves 109a to 109e.
【００３２】燃料用電極１０２には、燃料を液体または
気体の状態で燃料供給用兼ＣＯ2 排出用溝１０８ａ〜ｅ
に通過させることにより、燃料が供給され、かつ電極に
接触される。The fuel electrode 102 has fuel supply and CO 2 discharge grooves 108a to 108e in a liquid or gas state.
, Fuel is supplied and comes into contact with the electrodes.
【００３３】燃料用電極１０２と対向電極１０３は、セ
パレータ１０６および１０７をそれぞれ介して、外部回
路１０４に電気的に接続される。両電極の間には、電圧
が印加され、燃料用電極１０２側がプラス、対向電極１
０３側がマイナスとされる。The fuel electrode 102 and the counter electrode 103 are electrically connected to an external circuit 104 via separators 106 and 107, respectively. A voltage is applied between the two electrodes, and the fuel electrode 102 side is positive and the counter electrode 1
The 03 side is minus.
【００３４】上述した装置において、燃料用電極１０２
に燃料であるメタノールとともに水または水蒸気を供給
し、外部回路１０４を通じて、燃料用電極１０２から電
子を引き抜くように電圧を印加する。その結果、燃料用
電極１０２では、次の反応が進行する。In the above-described apparatus, the fuel electrode 102
Then, water or water vapor is supplied together with methanol as a fuel, and a voltage is applied through an external circuit 104 so as to extract electrons from the fuel electrode 102. As a result, the following reaction proceeds at the fuel electrode 102.
【００３５】[0035]
【化６】ＣＨ3ＯＨ＋２Ｈ2Ｏ→ＣＯ2＋６ｅ - ＋６Ｈ+ Embedded image CH 3 OH + 2H 2 O → CO 2 +6 e − + 6H +
【００３６】このようにして発生した水素イオンは、陽
イオン交換膜を通過し、対向電極１０３で次のように変
換される。The hydrogen ions thus generated pass through the cation exchange membrane and are converted by the counter electrode 103 as follows.
【００３７】[0037]
【化７】６Ｈ+＋６ｅ - →３Ｈ2 Embedded image 6H + +6 e − → 3H 2
【００３８】このようなプロセスにより、対向電極１０
３側で、水素を選択的に生成させることができる。した
がって、本発明のプロセスによれば、ＣＯの生成は抑制
される。According to such a process, the counter electrode 10 is formed.
On the three side, hydrogen can be selectively generated. Therefore, according to the process of the present invention, generation of CO can be suppressed.
【００３９】また、対向電極で生じたガスを、上述した
水素透過膜を介して採集すれば、水蒸気や他の不純物の
濃度を低下させ、純度の高い水素ガスを得ることができ
る。If the gas generated at the counter electrode is collected through the above-mentioned hydrogen permeable membrane, the concentration of water vapor and other impurities can be reduced, and a highly pure hydrogen gas can be obtained.
【００４０】[0040]
実施例１ 図１に示す装置を用いて水素ガスを製造した。 Example 1 Hydrogen gas was produced using the apparatus shown in FIG.
【００４１】本実施例において、電極は次のようにして
形成した。固体高分子電解質膜からなる陽イオン交換膜
として、ＮＡＦＩＯＮ１１７R （デュポン社製）を用い
た。金属塩として、３％塩化白金酸液、還元剤として１
％ＮａＢＨ4 溶液を用い、陽イオン交換膜に還元剤を浸
透させた後、膜表面を塩化白金酸溶液に接触させて、白
金層を析出させた。この方法により、膜の両面に、多孔
質の白金触媒層を形成し、１対の電極とした。In this example, the electrodes were formed as follows. As the cation exchange membrane made of a solid polymer electrolyte membrane was used Nafion 117 R (manufactured by DuPont). 3% chloroplatinic acid solution as metal salt, 1 as reducing agent
After permeating a cation exchange membrane with a reducing agent using a NaBH 4 % solution, the membrane surface was brought into contact with a chloroplatinic acid solution to precipitate a platinum layer. By this method, a porous platinum catalyst layer was formed on both sides of the membrane to form a pair of electrodes.
【００４２】このように膜の両側に電極が形成された接
合体を組込んだ図１の装置において、燃料用電極１０２
側に、モル比がメタノール：水＝１：２のメタノール−
水混合液を供給し、接合体からなるセルの温度を３０℃
に設定した。そして、燃料用電極１０２側をプラスと
し、燃料用電極１０２と対向電極１０３の間に０．２Ｖ
の電圧を加えたところ、１．０ｍＡ／ｃｍ2 の電流が流
れ、燃料用電極１０２からＣＯ2 が、対向電極１０３か
ら水素ガスが発生した。発生した水素中には一酸化炭素
は検出されなかった。In the apparatus of FIG. 1 incorporating the joined body having electrodes formed on both sides of the membrane as described above, the fuel electrode 102
On the side, methanol with a molar ratio of methanol: water = 1: 2
A water mixture is supplied, and the temperature of the cell comprising the joined body is set to 30 ° C.
Set to. Then, the fuel electrode 102 side is set to plus, and 0.2 V is applied between the fuel electrode 102 and the counter electrode 103.
Was applied, a current of 1.0 mA / cm 2 flowed, and CO 2 was generated from the fuel electrode 102 and hydrogen gas was generated from the counter electrode 103. No carbon monoxide was detected in the generated hydrogen.
【００４３】実施例２ 実施例１の装置において、対向電極上に水素透過膜とし
てポリイミド高分子膜を設け、この膜を介して水素を採
集した。実施例１と同様な条件にて、燃料用電極と対向
電極の間に０．２Ｖの電圧を印加したところ、１．０ｍ
Ａ／ｃｍ2 の電流が流れ、燃料用電極からＣＯ2 が、対
向電極から水素ガスが発生した。ポリイミド高分子膜を
介して採集された水素中には、一酸化炭素は検出されな
かった。Example 2 In the apparatus of Example 1, a polyimide polymer film was provided as a hydrogen permeable film on the counter electrode, and hydrogen was collected through this film. When a voltage of 0.2 V was applied between the fuel electrode and the counter electrode under the same conditions as in Example 1, 1.0 m
A / cm 2 current flowed, CO 2 was generated from the fuel electrode, and hydrogen gas was generated from the counter electrode. No carbon monoxide was detected in hydrogen collected through the polyimide polymer membrane.
【００４４】[0044]
【発明の効果】以上説明したように、本発明によれば、
従来のような複雑な反応系およびフローシステムは必要
でなく、非常にシンプルな装置によって、純度の高い水
素を生成させることができる。本発明によれば、ＣＯ等
の不純物の生成は抑制される。As described above, according to the present invention,
No complicated reaction system and flow system as in the prior art is required, and highly pure hydrogen can be produced by a very simple apparatus. According to the present invention, generation of impurities such as CO is suppressed.
【００４５】このため、一酸化炭素による中毒の危険が
回避されるとともに、生成される水素ガスについて、触
媒の被毒による化学反応性の低下も防止される。Therefore, the danger of poisoning due to carbon monoxide is avoided, and a decrease in chemical reactivity of the generated hydrogen gas due to poisoning of the catalyst is also prevented.
【図１】本発明に従う電気化学装置の一具体例を示す概
略断面図である。FIG. 1 is a schematic sectional view showing a specific example of an electrochemical device according to the present invention.
１００ 電気化学装置 １０１ 陽イオン交換膜 １０２ 燃料用電極 １０３ 対向電極 １０４ 外部回路 １０６ セパレータ １０７ セパレータ REFERENCE SIGNS LIST 100 Electrochemical device 101 Cation exchange membrane 102 Fuel electrode 103 Counter electrode 104 External circuit 106 Separator 107 Separator
フロントページの続き (56)参考文献 特開 平６−73583（ＪＰ，Ａ) 特開 平６−73852（ＪＰ，Ａ) 特開 昭58−11790（ＪＰ，Ａ) 水素エネルギーシステム研究会，水素 エネルギー読本，日本，オーム社，1982 年 １月25日，第１版，149−152, 「［２］燃料電池の原理」の項 (58)調査した分野(Int.Cl.7，ＤＢ名) C25B 1/02 C01B 3/32 Continuation of the front page (56) References JP-A-6-73583 (JP, A) JP-A-6-73852 (JP, A) JP-A-58-11790 (JP, A) Hydrogen Energy System Research Group, Hydrogen Energy Yomimoto, Ohmsha, Japan, January 25, 1982, 1st edition, 149-152, "[2] Principles of fuel cells" (58) Fields investigated (Int. Cl. 7 , DB name) C25B 1/02 C01B 3/32
Claims (1)
電極を設け、一方に設けられた触媒を含む電極に、メタ
ノールと水を少なくとも含む燃料を接触させ、前記１対の電極に電圧を印加して 前記電極から電子を取
出すことによって前記電極上で前記メタノールおよび水
から水素イオンを発生させる反応を進行させ、 発生させた前記水素イオンを、前記陽イオン交換膜の対
向する１対の面の他方に設けられた電極において、電子
の供給により水素分子に変換することを特徴とする、水
素発生方法。 1. A pair of cation exchange membranes ,
An electrode is provided, and a fuel including at least methanol and water is brought into contact with an electrode including a catalyst provided on one side, and a voltage is applied to the pair of electrodes to extract electrons from the electrodes, thereby forming an electrode on the electrode. the reaction proceeded for generating hydrogen ions from the methanol and water, the hydrogen ions generated in the electrode provided on the other pair of opposed faces of the cation exchange membrane, the hydrogen molecules by the supply of the electronic A method for generating hydrogen, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10839493A JP3328993B2 (en) | 1993-05-10 | 1993-05-10 | Hydrogen generation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10839493A JP3328993B2 (en) | 1993-05-10 | 1993-05-10 | Hydrogen generation method |
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| Publication Number | Publication Date |
|---|---|
| JPH06321501A JPH06321501A (en) | 1994-11-22 |
| JP3328993B2 true JP3328993B2 (en) | 2002-09-30 |
Family
ID=14483654
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10839493A Expired - Fee Related JP3328993B2 (en) | 1993-05-10 | 1993-05-10 | Hydrogen generation method |
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| 水素エネルギーシステム研究会，水素エネルギー読本，日本，オーム社，１９８２年 １月２５日，第１版，１４９−１５２，「［２］燃料電池の原理」の項 |
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